New Upgrade 3.0 Quality: Battery for macbook air 13 inch with Japan High Performance Electric Core, 7200mAh Voltage:7.4V Capacity: 53.28Wh(Compatible with 7.6V/55Wh and 7.4V/53.28Wh) Package include: 1 x Macbook battery; 1 x keyboard protective film; 2 x screwdrivers; 4 x helper mat; 10 x replacement screws. After Sale and OperationTime: consistent with the new original battery life, even more than the original battery. Up to 500 recharge cycles over the life of the battery. 25 Months After sale (Normal capacity loss is not covered by the After sale) 30 days money return service and 24/7 Email customer support Replacement Battery for MacBook Air: Made for MacBook Air 13 inch A1466 (Mid 2012, Mid 2013, Early 2014, Early 2015, 2017 Version), A1369 (Late 2010, Mid 2011 Version), MC503LL/A, MC504LL/A, MC965LL/A, MC966LL/A, MD231LL/A, MD232LL/A, MD760LL/A, MD761LL/A, MD760LL/B, MD761LL/B, MJVE2LL/A, MJVG2LL/A. EMC Applicable number: 2469/2559(see compatible models) Newest Premium Grade Cells: XINGLT MacBook Air laptop replacement battery ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. UL-/CE-/FCC-/RoHS-Certified for safety, About 500 recharge cycles over the life of the battery,(Life cycle: 3-5 years)